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Atrial interaction ...
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Henein, MarkUmeå universitet,Kardiologi
(författare)
Atrial interaction in the form of 'cross talk' in patients with ventricular outflow tract obstruction.
- Artikel/kapitelEngelska2011
Förlag, utgivningsår, omfång ...
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Elsevier BV,2011
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:umu-32338
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-32338URI
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https://doi.org/10.1016/j.ijcard.2009.09.541DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Epub ahead of print
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BACKGROUND: The Bernheim 'a' wave in the jugular venous pulse of patients with left ventricular hypertrophy has been shown to reflect accentuated right atrial activity. OBJECTIVE: To study possible atrial interaction in patients with right and left ventricular outflow tract obstruction due to significant pulmonary (PS) and aortic valvular stenosis (AS) respectively. METHODS: We studied 41 PS patients (age 36+/-10 year) and 41 AS patients (age 35+/-12 year) and their results were compared with those of 27 controls (age 30+/-7 year). RV and LV filling were recorded by conventional PW Doppler. Biventricular segmental function was studied using the PW tissue Doppler imaging (TDI) and M-mode techniques. RESULTS: The 2 patient groups had similar degree of ventricular outflow tract obstruction. Long axis function was impaired while global systolic function was preserved in the pressure-overloaded ventricle. Patients had higher peak late filling (A wave) and TDI late diastolic (Aa) velocities recorded in the disease-free ventricles despite having similar peak early filling velocities (E wave), E wave deceleration time and E/Ea ratios were not different from controls (p>0.05 for all). Such accentuation of atrial activity (A wave) was moderately correlated with the degree of contralateral ventricular outflow tract obstruction (p<0.001 for both). CONCLUSIONS: Long axis function is more sensitive than global function in revealing myocardial dysfunction in the pressure-overloaded ventricles. The increased contralateral atrial systolic activity suggests an evidence for atrial interaction in the form of 'cross talk'.
Ämnesord och genrebeteckningar
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Aortic stenosis
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Pulmonary stenosis
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Atrial cross talk
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MEDICINE
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MEDICIN
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Lam, Yat-Yin
(författare)
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Waldenstöm, AndersUmeå universitet,Kardiologi(Swepub:umu)anwa0002
(författare)
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Henein, Michael YUmeå universitet,Kardiologi(Swepub:umu)mihe0015
(författare)
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Umeå universitetKardiologi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:International Journal of Cardiology: Elsevier BV17:147(3), s. 388-3920167-52731874-1754
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